Immunodiffusion plate



FIG. 1 is a perspective view of an immunodiffusion plate, showing my new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged front elevational view thereof, the rear elevational view being identical thereto;

FIG. 4 is an enlarged bottom plan view thereof;

FIG. 5 is an enlarged right side elevational view thereof, the left side elevational view being identical thereto;

FIG. 6 is an enlarged cross-sectional view taken along line 6--6 of FIG. 1; and

FIG. 7 is an enlarged fragmentary perspective view of the bottom portion of the immunodiffusion plate. 

The ornamental design for an immunodiffusion plate, as shown. 